Home / 18,756,661.30-28,131,055.20-5,290,340.02

Finding the Fourth Proportional to 18,756,661.30, 28,131,055.20 and 5,290,340.02

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Solution

The fourth proportional to 18,756,661.30, 28,131,055.20 and 5,290,340.02 is: 7,934,399.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,661.30 : 28,131,055.20 = 5,290,340.02 : x
  2. Step 2: Convert to fraction form
    18,756,661.30/28,131,055.20 = 5,290,340.02/x
  3. Step 3: Cross multiply
    18,756,661.30x = 28,131,055.20 × 5,290,340.02
  4. Step 4: Simplify right side
    18,756,661.30x = 148,822,847,129,389.09
  5. Step 5: Solve for x
    x = 148,822,847,129,389.09/18,756,661.30
  6. Step 6: Final answer
    x = 7,934,399.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.